Formula for binomial distribution
A safety engineer claims that 3 in 12 automobile accidents are due to driver fatigue. Using the formula for Binomial Distribution find the probability that at least 2 of 5 automobile accidents are due to driver fatigue.
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A report states that 46% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 3% with 99% confidence?
Suppose the amount of cosmic radiation to which a person is exposed folows normal distributioin with a mean 5.853 and standrad deviation 1.361. What is the probability that the person will be exposed to more than 8.625 units of cosmic radiation?
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Find the margin of error for mu(mew), if x-bar = 50, n= 16, s= 12 and c= 90.
The number of students who belong to the dance company at each of several randomly selected small universities is shown below. Estimate the true population mean size of a university dance company with 99% confidence. Show step by step.
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A researcher wishes to be 99% confident that her estimate of the true proportion of individuals who travel overseas is within 4% of the true proportion. Find the sample size necessary if in a prior study, a sample of 200 people showed that 40 trav
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